Compilare: user.cpp: In function ‘int main()’: user.cpp:39:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < mushrooms[0].size(); ++i) ^ user.cpp:52:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < mushrooms[i].size(); ++j) ^ user.cpp:62:5: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(q < j) { ^